/* Unix SMB/CIFS implementation. file_id structure handling Copyright (C) Andrew Tridgell 2007 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "includes.h" /* return True if two file_id structures are equal */ bool file_id_equal(const struct file_id *id1, const struct file_id *id2) { return id1->inode == id2->inode && id1->devid == id2->devid && id1->extid == id2->extid; } /* a static string for a file_id structure */ const char *file_id_string_tos(const struct file_id *id) { char *result = talloc_asprintf(talloc_tos(), "%llx:%llx:%llx", (unsigned long long)id->devid, (unsigned long long)id->inode, (unsigned long long)id->extid); SMB_ASSERT(result != NULL); return result; } /* push a 16 byte version of a file id into a buffer. This ignores the extid and is needed when dev/inodes are stored in persistent storage (tdbs). */ void push_file_id_16(char *buf, const struct file_id *id) { SIVAL(buf, 0, id->devid&0xFFFFFFFF); SIVAL(buf, 4, id->devid>>32); SIVAL(buf, 8, id->inode&0xFFFFFFFF); SIVAL(buf, 12, id->inode>>32); } /* push a 24 byte version of a file id into a buffer */ void push_file_id_24(char *buf, const struct file_id *id) { SIVAL(buf, 0, id->devid&0xFFFFFFFF); SIVAL(buf, 4, id->devid>>32); SIVAL(buf, 8, id->inode&0xFFFFFFFF); SIVAL(buf, 12, id->inode>>32); SIVAL(buf, 16, id->extid&0xFFFFFFFF); SIVAL(buf, 20, id->extid>>32); } /* pull a 24 byte version of a file id from a buffer */ void pull_file_id_24(char *buf, struct file_id *id) { ZERO_STRUCTP(id); id->devid = IVAL(buf, 0); id->devid |= ((uint64_t)IVAL(buf,4))<<32; id->inode = IVAL(buf, 8); id->inode |= ((uint64_t)IVAL(buf,12))<<32; id->extid = IVAL(buf, 16); id->extid |= ((uint64_t)IVAL(buf,20))<<32; }